tamerlan taught everything to himself. we were happy about it because he didn't start doing drugs or alcohol. now he doesn't speak to other women he's not related to. they're not important to him. it's a sin to look them in the eye. she saw him for four of the six months he was here and he went to chechnya twice. >> translator: yes, he went to chechnya for a couple of days i don't know where his relatives there lived. they were from his father's side. that village was bombed in the second war though. >> she reveals that she rang the boys to check they were well and they rang her again when they were on the run just the day before tamerlan died. the day before they spoke and it was like always. mommy, everything's fine with us. mommy, we're totally fine. "mommy" that's what they call her. [ speaking foreign language ]. >> translator: we miss your warmth and caress, they said, tamerlan said mommy, i love you and dzhokhar's voice said i love you too, mommy. she watched the boy's father filmed her earlier in the week see them